【摘要】 本文用Sephadex G25(φ1.2×400cm)对柠檬酸盐和邻苯二甲酸盐掩蔽的糖还原Cr-Al鞣液进行了较为有效地分离,并考察了各分离组分中的电荷分布情况。结果表明,邻苯二甲酸盐及少量的柠檬酸盐使络合物分子量变大;铝向大分子组分中集中;分子量较高的组分其电荷值也较高。更多还原

【Abstract】 This article has separated more effectively the components of glucosereduced Cr-Al tanning liquor masked with the different proportionsof citrate and phthalate by GPC,and then inspect the distribution ofcharge in each fraction by IEC.The results indicated phthalate and a fewcitrate to make the molecular weight of complexes higher and have Alu-minum concentrated in macromolecular fractions. The higher the chargevalue of complexes is,the higher their molecular weight is.更多还原